    New chain ID            Original chain ID

8pv6-pdb-bundle1.pdb:
           A                        C1
           B                        C2
           C                        C3
           D                        C4
           E                        CF
           F                        CH
           G                        CI
           H                        CJ
           I                        CK
           J                        CL
           K                        CM
           L                        CN
           M                        CO
           N                        CQ
           O                        CR
           P                        CS

8pv6-pdb-bundle2.pdb:
           A                        CT
           B                        CU
           C                        CV
           D                        CW
           E                        Cb
           F                        Cd
           G                        Ce
           H                        Ch
           I                        Cz
           J                        LA
           K                        LB
           L                        LC
           M                        LD
           N                        LE
           O                        LF
           P                        LG
           Q                        LH
           R                        LJ
           S                        LK
           T                        LL
           U                        LM
           V                        LN
           W                        LO
           X                        LP
           Y                        LQ
           Z                        LR
           a                        LS
           b                        LT
           c                        LU
           d                        LV
           e                        LX
           f                        LY
           g                        LZ
           h                        La
           i                        Lb
           j                        Lc
           k                        Ld
           l                        Le
           m                        Lf
           n                        Lg
           o                        Lh
           p                        Li
           q                        Lj
           r                        Lk
           s                        Ll
           t                        Lp
           u                        Lq
           v                        Lr
